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TIRES - WHEELS - SUSPENSION (CONTINUED)
SYMPTOMS
PROBLEM: REMEDY
BENDING OR WARPING
Curb-hopping or potholes:
adjust turning practices and adjust
speed accordingly with road conditions.
Improper tightening sequence:
follow proper tightening se-
quence. (
See Figure 4-.)
BROKEN STUDS*
Over tightening:
use correct torque when mounting.
Under torque:
Use correct torque and tightening sequence when
mounting.
Rim not seated:
Adjust rim to equal distance with hub.
*REPLACE BROKEN STUDS BEFORE USING THE SEMITRAILER!
SEMITRAILER TRACKING PROBLEMS:
TRACKS TO ONE SIDE
Axle alignment:
re-align axle.
TRACKS TO EITHER SIDE
Broken or bent springs or equalizers:
replace defective parts.
Axles not parallel
: realign axles
AIR RIDE HEIGHT PROBLEMS:
TOO HIGH
Axle to control valve linkage:
readjust linkage.
Height Control Valve internal leak:
repair or replace valve.
TOO LOW
Axle to control valve linkage:
readjust linkage.
Height Control Valve filter plugged:
clean or replace valve.
Pressure Protection Valve filter plugged:
clean or replace valve.
System air pressure low (65 PSI minimum required):
trouble-
shoot air supply.
UNEVEN FROM SIDE TO SIDE
Linkage adjustment:
readjust linkage.
Exhaust port plugged:
clean or replace valve(s).
Height control valve internal leak:
repair or replace valve.
Supply line to one height control valve pinched, restricted, or
plugged:
repair or replace line.
5-3 BRAKES
For maintenance procedures, see
Sections 4-8.
SYMPTOM
PROBLEM: REMEDY
NO BRAKES OR BRAKES
ARE INTERMITTENT
Brake air system improperly connected:
reconnect gladhands
properly.
Relay/Emergency valve plugged:
clean valve.
Defective tractor protection valve:
repair or replace.
Restricted tubing or hose line:
locate and eliminate restriction.
Broken line:
locate break and repair.
Tractor air system failure:
troubleshoot tractor air system and repair.
Check ABS system function.
5-3
Содержание 330B
Страница 3: ...MODEL 330B SEMITRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i ...
Страница 8: ......
Страница 12: ......
Страница 20: ...3 8 Figure 3 3 Steps for Loading and Unloading ...
Страница 26: ...3 14 Figure 3 7 Rear Impact Guard System ...
Страница 34: ...4 6 Figure 4 2 330B Wiring Diagram ...
Страница 35: ...4 7 Figure 4 3 Remote Wiring Diagram ...
Страница 40: ...4 12 Figure 4 6 Examples of Camber Figure 4 7 Checking Axle for Bend ...
Страница 44: ...4 16 Figure 4 11 Axle and Brake Assembly ...
Страница 54: ......
Страница 63: ...NOTES 5 9 ...
Страница 64: ......